Heavy rain and thunderstorms swept across Montreal on June 17, 2026, triggering an electricity failure at Montréal‑Trudeau Airport and forcing a temporary suspension of Réseau express métropolitain (REM) trains on a portion of the network.
The storm‑related outage at the airport disrupted power supplies needed for normal operations. Airport officials reported the loss of electricity and indicated that essential services were being managed while engineers worked to restore power.
At the same time, the same weather system caused a loss of electricity on a segment of the REM line. The rapid‑transit system was forced to halt train movements in the affected area until the power issue could be resolved, leaving commuters without service on that stretch of the route.
The REM, Montreal’s fast‑track urban rail system, connects the city’s core with outlying districts and the airport. Its reliance on a stable electrical grid means that severe weather can lead to service interruptions, as demonstrated by today’s events. The temporary suspension is part of standard safety protocols that require power to be fully restored before trains can resume.
Authorities from both the airport and the REM operator are working to repair the damaged infrastructure. No further details on the duration of the outage were released, but both entities emphasized that safety remains the priority while restoration efforts continue. Residents and travelers in the affected zones are advised to follow updates from official channels as power is reinstated and train service is gradually resumed.